That’s an awesome issue, Ted. I’m not sure. Here is a pair examples of what I’ve listened to in several places around the Federal 210 vs Federal 210M differences: I do have two revolvers that at times misfire on the initial strike on double action with CCI primers, and both https://donovannsrnh.blazingblog.com/31913091/federal-gold-medal-215m-primers-for-dummies